HPE ClearPass OnGuard: Missing integrity check enables remote code execution
Summary
A missing integrity verification flaw in the OnGuard agent of HPE ClearPass Policy Manager (CPPM) allows an unauthenticated remote attacker to execute arbitrary code on the affected endpoint. The code runs with the elevated privileges of the agent. The sources do not describe the attack path, and the flaw is rated network-reachable without authentication with a CVSS score of 9.8. The risk exists only where OnGuard is deployed.
Affected
- ClearPass Policy Manager 6.14.0 and earlier
- ClearPass Policy Manager 6.11.0 to 6.11.15
- Standalone OnGuard agent versions: unknown (vendor has not specified)
Fixed in
- CPPM 6.14.1
- CPPM 6.11.16
- OnGuard agent fixed version: unknown; check the HPE bulletin for agent remediation
Workaround
- CPPM: restrict CLI and web management interfaces to a dedicated layer 2 segment/VLAN and/or firewall policies (HPE recommendation, server only)
- OnGuard agent: no vendor-approved workaround known
Exploitation
- No public exploit code or in-the-wild exploitation known in the sources reviewed.
- Not listed in CISA KEV in the sources found.
- CISA SSVC: automatable yes, technical impact total.
Our recommendation
- Check whether ClearPass Policy Manager and OnGuard are in use.
- Patch CPPM to 6.14.1 or 6.11.16 first.
- Deploy the vendor's OnGuard agent update once the fixed version is confirmed in the HPE bulletin.
- Keep CPPM management interfaces off the internet and restrict them to a management segment.
- Monitor endpoints for unexpected processes started by the agent.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- HPE Security Bulletin HPESBNW05158 (advisory) support.hpe.com
- CSA Singapore advisory AL-2026-139 www.csa.gov.sg
- Secure-ISS: HPE ClearPass Policy Manager critical vulnerabilities www.secure-iss.com
- SecurityOnline: ClearPass Policy Manager vulnerabilities securityonline.info
- OpenCVE: CVE-2026-76751 app.opencve.io
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 30 Oct 2026, 20:57.
Original description (NVD)
A missing integrity verification vulnerability exists in the OnGuard agent of ClearPass Policy Manager. Successful exploitation could allow an unauthenticated, remote attacker to execute arbitrary code on the affected endpoint with the elevated privileges of the agent.
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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